Overview

  1. Talk through how to scan files easier for homework
    Homework Total length ~ [60-70min]

    Febuary 25th whole unit midterm to cover material

    1. Redo MCQ section on first Test 4. Show your work, be prepared to talk through 3 at random during class

Midterm next week, lesson on Friday to prep for midterm. 5:30-7pm.


  • CamScanner

Notes

Humza Teaches

  1. A 3 kg block on a frictionless surface explodes into two pieces. One 1 kg piece moves right at 6 m/s. The second 2 kg piece moves at an angle θ above horizontal at 3 m/s. What is θ?
    1. Two identical 2 kg carts collide. Initially, cart A moves right at 3 m/s while cart B is at rest. If after collision they move apart at 1.5 m/s each, which statement is correct about the collision?
  1. In a car crash test, a 1000 kg car moving at 15 m/s hits a barrier. The crash takes 0.2 seconds, and the force applied by the barrier increases linearly from 0 N to its maximum value, then decreases linearly back to 0 N over equal time intervals. If the car stops completely, what was the maximum force applied?
  1. A 2 kg block initially moving right at 3 m/s hits a spring and bounces back left at 2 m/s. If the collision took 0.1 seconds, what was the average force exerted by the spring?
  1. A 2kg cart at rest is pushed by a spring (k = 400 N/m) compressed 0.3 m. The cart travels up a frictionless ramp inclined at 30° to the horizontal. What maximum height does it reach along the ramp?
  1. A 4 kg block slides down a 3-meter long ramp inclined at 25° with coefficient of kinetic friction μₖ = 0.2. If it starts from rest, what is its speed at the bottom of the ramp?

Kinematics Equations1

Homework Total length ~ [60-70min]

Camscanner tutorial
Review packet will be sent out before tomorrow! Midterm is over Openstax chapters 1,2,3,4,5,7,8. The homework is to find 7 FRQ's (one per section) from the AP section (how to find below), and do them. Then come to class with questions on them
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Kids were at MIST, reduce the homework amount to half so they do it by class. Make announcement on classroom